<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
    <h1>人员列表</h1>
    <input type="text" placeholder="请输入名字" v-model="keyword">
    <button @click="sortType=2">列表升序</button>
    <button @click="sortType=1">列表降序</button>
    <button @click="sortType=0">原顺序</button>
    <ul>
        <li v-for="(p,index) in filPerson" :key="p.id">
            {{p.name}}-{{p.age}}-{{p.sex}}
        </li>
    </ul>

</div>
<script src="../JavaScript/vue.js"></script>
<script>
    const vm = new Vue({
        el: "#app",
        data: {
            keyword: "",
            sortType: 0, // 0原顺序 1降序 2升序
            persons: [
                {id: "001", name: "马冬梅", age: 1, sex: "女"},
                {id: "002", name: "周冬梅", age: 19, sex: "女"},
                {id: "003", name: "周杰伦", age: 20, sex: "男"},
                {id: "004", name: "文昭伦", age: 5, sex: "男"},
            ],
        },
        computed: {
            filPerson() {
                const arr = this.persons.filter((item) => {
                    return item.name.indexOf(this.keyword) !== -1
                })
                if (this.sortType) {
                    arr.sort((a, b) => {
                        return this.sortType === 1 ? a.age - b.age : b.age - a.age
                    })
                }
                return arr
            }
        }
    })
</script>
</body>
</html>
